if the ph of a substance is 9.8, what is the concentration of h+? 1.85 x 10^-10 m 1.58 x 10^-10 m 1.85 x…
if the ph of a substance is 9.8, what is the concentration of h+? 1.85 x 10^-10 m 1.58 x 10^-10 m 1.85 x 10^10 m 1.58 x 10^10 m
Answer
Answer:
B. $1.58\times 10^{-10}\text{ M}$
Explanation:
Step1: Recall pH formula
The formula for pH is $pH = -\log[H^+]$, where $[H^+]$ is the hydrogen - ion concentration.
Step2: Rearrange the formula
We can rewrite the formula to solve for $[H^+]$ as $[H^+]=10^{-pH}$.
Step3: Substitute the given pH value
Given $pH = 9.8$, then $[H^+]=10^{-9.8}$.
Step4: Calculate the value
$10^{-9.8}=1.58\times 10^{-10}\text{ M}$.